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kirill115 [55]
3 years ago
11

Dhdjkfjchdhdjfkuc help‍♀️

Biology
1 answer:
Olin [163]3 years ago
6 0

Answer:

D

Explanation:

pretty sure!

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A man with blood type B marries a woman with blood type A. their first child is blood type O. Use a Punnett square to predict wh
Sergio [31]

Answer: 1/4 AA or type A Blood; 1/4 BB or type B Blood; 1/2 AB

7 0
3 years ago
A recent study of the marine hawksbill turtle's stomach contents revealed that sponges constitute a major portion of their diet.
bearhunter [10]

Answer:

These structures that protect the sponges from most predators, but not turtles, are spicules.

Explanation:

Sponges <em>skeleton</em> is composed of <em>calcium carbonate and siliceous</em> micro-structures called <u>spicules</u>. Their morphology is so varied that it is used in taxonomy for identification and classification.

There are different kinds of spicules:

-         <em>Monoaxonic spicule</em>: needle-shaped, straights or curves

-         <em>Tetraxonic spicules:</em> they have four prolongations

-         <em>Triaxonic or Hexaxonic spicules</em>

-         <em>Poliaxonic spicules </em>

Two terms can be applied to any of these spicules kinds:

-         <em>Megaspicules</em>: They are elongated and compose the main architecture of the sponge skeleton

-         <em>Microspicules</em>: Variable in shape and size, with ancillary functions

Sponges have few predators thank to the spicule structures and their high toxicity. Many of them are capable of perforating soft tissues and producing urticant substances.

6 0
3 years ago
What would happen to the concentrations of Pyruvate, NADH and intermembrane H+ if the ETC stopped working?
STatiana [176]

Answer:

"Proton decreases" would be the right approach.

Explanation:

  • The Kreb cycle or system plays a key role throughout a matrix of mitochondria. 3 NADH, 2 FADH2 as well as 1 ATP are synthesized.
  • Whenever the Kreb process has been halted, the acetyl CoA throughout the Kreb cycle has not been used. Pyruvate doesn't at all, disintegrate via acetyl CoA. Therefore in cells, pyruvate accumulates.
  • Unless the Kreb loop is halted, therefore the concentration of NADH and FADH2 declines.

Thus, they aren't used for the transportation chain of electrons. This is also why protons have not been discovered to be injected towards intermembrane space.

8 0
3 years ago
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EastWind [94]
A- non-native species can have positive and negative affects
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3 years ago
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Correctly label the parts of the water cycle. Make sure to indicate in your answer which part you are labeling by using the numb
zheka24 [161]

1 condensation 2 precipitation 3 runoff 4 evaporation.

6 0
3 years ago
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