Yes, it is what scripture says:
1Co 15:38 But God giveth it a body as it hath pleased him, and to every seed his own body.
1Co 15:39 All flesh is not the same flesh: but there is one kind of flesh of men, another flesh of beasts, another of fishes, and another of birds.
1Co 15:40 There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another.
1Co 15:41 There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory.
1Co 15:42 So also is the resurrection of the dead. It is sown in corruption; it is raised in incorruption:
1Co 15:43 It is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power:
1Co 15:44 It is sown a natural body; it is raised a spiritual body [PLEASE NOTE: the text does NOT say "spirit body", which is a contradiction in terms, Luke 24:39 KJB]. There is a natural body, and there is a spiritual body.
1Co 15:45 And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit.
1Co 15:46 Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
1Co 15:47 The first man is of the earth, earthy: the second man is the Lord from heaven.
1Co 15:48 As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly.
1Co 15:49 And as we have borne the image of the earthy, we shall also bear the image of the heavenly.
Angels, like Gabriel, are called "ministering spirits", and one ministers with the feet, hands, et, their bodies/persons/beings/souls which is directed by their spirit/mind/heart, under the influence of the Holy Ghost/Spirit. Notice that the context of 1 Corinthians 15:38-49 is the resurrection and the glorified body, just as Jesus' own glorified flesh and bone body:
Php_3:21 Who shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby he is able even to subdue all things unto himself.
Luk_24:39 Behold my hands and my feet, that it is I myself: handle me, and see; for a spirit hath not flesh and bones, as ye see me have.
Now, notice, what scripture says of the resurrection and of the present state of angelic nature:
Mat_22:30 For in the resurrection they neither marry, nor are given in marriage, but are as the angels of God in heaven.
Mar_12:25 For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven.
I have many more texts which substantiates this. Lucifer (a fallen angel, now satan) himself once wore glorious gems, and precious stones, see Ezekiel 28:13. Angels are not (and never have been) wispy aether. They are solid tangible flesh and bone beings, having a "spiritual body" (a celestial (Heavenly materials, not earthly materials) body under the control of the Holy Ghost, or their own minds a Lucifer/Satan and the fallen hosts).
Paul draws a comparison to from the Sun, Moon and varying stars, all made up of celestial (Heavenly) elements, and differing from one another to those of terrestrial (earthly) elements. Angels are made of higher (Heavenly) materials. They are normally glorious beings, but they can veil their glory when needful (see Genesis 17-19, etc).
PS. that will directly affect the doctrine of "possession", which has nothing to do with the hollywood like mindset that is prevalent today.
You will find wheat and tares, sheep and goats, wise and foolish amidst any congregation of those who take upon themselves the name Seventh-day Adventist. So it will depend upon the doorstep and elders you come into/unto these days. Some could care less, but they do so at their own peril and defiance of the very material written in Scripture and SoP/ToJ.
The Bible (KJB) and the Spirit of Prophecy, or Testimony of Jesus (aka, that which also came by sister White from God's inspiration) teaches Health (reform), more than it does what people call "vegetarianism", or "veganism" (which are names derived from other religious movements). Many use those names, but they do not quite line up with scripture. For instance, a "vegan" is allowed to drink alcohol, while it is forbidden in scripture (Proverbs 20:1, etc). A "vegan" won't eat honey, but the Bible allows it to be eaten in temperance, lest too much and one vomit it out. "Vegetarianism" is more of a cultural thing. So while those words are often used, the real term that should be used is "Health Reformers", or "Health Gospellers", or one might even use "Plant-based diet" or Garden of Eden diet, etc.
You might consider this presentation by this palagi:
Video
Powerpoint
God is concerned with body and mind:
Rom 12:1 I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service.
Rom 12:2 And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.
3Jn 1:2 Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth.
The Body is the Temple of the Holy Ghost, and it cannot accept the unclean and abomination in the diet and remain holy and undefiled. God will not accept it as a "living" "sacrifice".
The sanctuary of Heaven (Hebrews 8:2, etc) itself teaches the health laws of God are eternal.
God warns, very strongly, about those who make their belly their god, thinking that they can eat/drink anything they want outside of the true God's health law:
1Co_6:13 Meats for the belly, and the belly for meats: but God shall destroy both it and them. Now the body is not for fornication, but for the Lord; and the Lord for the body.
Php_3:19 Whose end is destruction, whose God is their belly, and whose glory is in their shame, who mind earthly things.)
1Co_3:17 If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are.
1Co_10:31 Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God.
Go read, 1 Corinthians 10; Psalms 78 and Numbers 11. In that order. Read very carefully.
God means what He says:
Isa_66:17 They that sanctify themselves, and purify themselves in the gardens behind one tree in the midst, eating swine's flesh, and the abomination, and the mouse, shall be consumed together, saith the LORD.
I like your questions. Good, simple questions. Feel free to ask anything, really.