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boyakko [2]
3 years ago
6

What kind of egg do reptiles lay?

Biology
1 answer:
Lubov Fominskaja [6]3 years ago
6 0

B amniotic eggs which is one of the similarities they share with birds (one of the many similarities and cause birds and reptiles to be on the same branch)

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Someone please help me will mark branliest and give you lots of points
Mumz [18]

Answer:

1. Disagree

2. Agree

3. Disagree

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9. Disagree

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Explanation:

I HOPE THIS HELPED EVEN A LITTLE

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3 years ago
Induced Pluripotent Stem Cells are:
denis-greek [22]

Answer:

I think it's the first one

3 0
3 years ago
Sort the following events into two categories:________.
Amanda [17]

Answers:

a) carcinogenic

b) anti-carcinogenic

c) carcinogenic

d) carcinogenic

e) carcinogenic

f) anti-carcinogenic

g) anti-carcinogenic

h) anti-carcinogenic

Explanation:

Cyclins are proteins that regulate the progression through the cell cycle, i.e., the transition of G1 to S phase. It is well known that high cyclin expression may lead to cell proliferation states, which is closely associated with cancer progression. Moreover, the blockage of cyclins may have an anti-carcinogenic effect by inhibiting the progression through the cell cycle. MAP kinases are serine/threonine kinases that regulate the progression through the cell cycle by phosphorylating a variety of substrates during cell proliferation. In consequence, phosphatases that inactivate MAPK kinases (i.e., by dephosphorylation) may have an anticarcinogenic effect. The p53 is a tumor suppressor protein involved in diverse cellular processes including DNA repair, cycle arrest and programmed cell death. This protein (p53) is activated by phosphorylation at target residues and phosphatases inactivate it, thereby the blockage of its degradation may have an anticarcinogenic effect. Oncogene activation (i.e., the expression of oncogenes), may alter diverse cellular processes including DNA replication, and thereby may lead to cancer development. The G-protein α subunit is a GTPase that hydrolyses GTP and thus has a major role in controlling the kinetics of the G-protein signaling cascade. Platelet-derived growth factor receptors (PDGFR) are kinase receptors that play roles in regulating cellular differentiation, cell proliferation and cell growth. PDGFR receptors are present on the surface of normal cells, however, it has been shown that mutations of the PDGFR genes that lead to their high expression lead to uncontrolled cell growth and consequently cause cancer (i.e., by increasing PDGF signaling).

5 0
3 years ago
identify the type of solution (Hypotonic, Isotonic and Hypertonic) in each of the beakers. Write your answers as A=..., B=..., C
Pavlova-9 [17]

Answer:

Beaker A= Isotonic

Beaker B = Hypotonic

Beaker C= Hypertonic

Explanation:

ISO means the same on each side.

Hypo means less.

Hyper means more.

8 0
3 years ago
Name a famous ecologist​
Ludmilka [50]

Answer:

Antony Van Leeuwenhoek

Explanation:

Discovering bacteria and creating more than 500 simple microscopes

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