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charle [14.2K]
3 years ago
5

Gymnosperms _____. select all that apply

Biology
2 answers:
pav-90 [236]3 years ago
7 0
C. Are vascular is the answer
Inga [223]3 years ago
3 0

Answer:

A, B, C and E

Explanation:

A – (True) Gymnosperms can reproduce through the rupture of the pollen sac, releasing innumerable pollen grains, which carried by the wind, can reach the eggs found in female strobiles, this process constitutes the pollination, which in this case occurs through the wind.

B – (True) There are reproductive branches in the modified leaf gymnosperms known as strobiles, in some species strobiles are well developed and known as cones. The seeds are formed on the surface of the cones.

C – (True) Gymnosperms are part of the category of vascular plants, which have sap-carrying vessels, whose main function is the transport of water and nutrients.

D – (False) The seeds of gymnosperms are not protected by fruits, so they are known as "naked seeds".

E – (True) Gymnosperm spores can be produced by both <u>reproductive strobiles</u>. Male strobiles are smaller, male spores are produced inside.

Female strobiles are much larger and are known with pine cones and produce female spores.

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Anatomy and
Masja [62]

Answer:

lateral; inferior

Explanation:

In anatomical terms:

  • Superior is towards the head, and <u>inferior </u>is towards the feet.
  • Medial is towards the centre of the body (belly button) whereas <u>lateral </u>is towards the outside of the body (towards the hip bones and arms, for example)
  • Posterior is towards the back (spine), whereas anterior is towards the front (belly)

Therefore, the fingers are lateral (to the side) and inferior (lower) than the heart

5 0
3 years ago
PLEASE PLEASE HELP I WILL GIVE BRAINALIST
Dennis_Churaev [7]

1. Autotrophs

2. Group A

3. Heterotrophs

4. Chemoautotrophs

4 0
2 years ago
During the cross-bridge cycle in muscle cells, myosin motors hydrolyze ATP as fuel to create a pulling force on actin fibers. Pl
exis [7]

Answer and Explanation:

In rest, attraction strengths between myosin and actin filaments are inhibited by the tropomyosin. When the muscle fiber membrane depolarizes, the action potential caused by this depolarization enters the t-tubules depolarizing the inner portion of the muscle fiber. This activates calcium channels in the T tubules membrane and releases calcium into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to the troponin C, the troponin T alters the tropomyosin by moving it and then unblocks the binding sites. Myosin heads bind to the uncovered actin-binding sites forming cross-bridges, and while doing it ATP is transformed into ADP and inorganic phosphate which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament.  Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin.  Z-bands are then pulled toward each other, thus shortening the sarcomere and the I-band, and producing muscle fiber contraction.

7 0
3 years ago
In the morning you eat an orange and drink a cup of coffee, both are acidic items.
zloy xaker [14]

Answer:The physiological response is to maintain a neutral PH.

Explanation:

5 0
3 years ago
I just need to know if #21 &amp; 22 are correct :)
Anit [1.1K]

Answer:

correct

Explanation:

7 0
3 years ago
Read 2 more answers
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