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marysya [2.9K]
3 years ago
10

Which winds are found primarily in the tropics:

Biology
1 answer:
Fantom [35]3 years ago
6 0

Answer: Trade Winds.

Explanation:

Y e s.

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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
2 years ago
What do life functions and enzymes have in common?
igomit [66]

Answer:

Maintenance or homeostasis would be common in life-functions and enzymes.

The basic goal of different life functions is to maintain a balance for well being of an individual and thus maintenance of life.

Similarly, enzymes function in order to reach equilibrium between the reactant and the products.

Substrate and products are common terms used in both chemical equation and enzymatic reaction.

In both specific substrates are converted to respective products.

Enzymes work as a catalyst and increase the rate of a biochemical reaction.

8 0
3 years ago
Name a involuntary muscle
n200080 [17]

Involuntary muscles are the muscles that move without conscious control of the organism and are controlled by the autonomic nervous system.

Some examples of this are:

• the ,cardiac muscle, (,heart,)

,

• smooth muscles,, like the ones found in the ,stomach,, ,intestine,, and, bladder.

3 0
1 year ago
What is the powerhouse of the cell
Phoenix [80]

Answer:

Mitochondria

Explanation:

  • Mitochondria are considered as the powerhouse of cell because they perform function cellular respiration process in a cell.
  • Cellular respiration is a process of converting the chemical energy present in nutrients into ATP which gives energy to organisms to carry out movement and physical actions.
  • Mitochondria performs cellular respiration process from which they can release energy present in food and nutrients.
  • Due to those reasons, mitochondria is called as powerhouse of cell.

7 0
3 years ago
The phenomenon of multiple, overlapping action potentials gradually building muscle tension is called:
rewona [7]
The answer is graded potential<span>. Its made of various action potentials that depolarise the neuron incrementaly, in short interspersed intervals that do not give time for the neurons to return to resting potential. Therefore, the actions potentials, of varying sizes, grade up in  sum and when they cumulatively reach the threshold level, they invoke an impulse in the nerve</span>




5 0
3 years ago
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