BIOLOGY COLLEGE

2. Suppose the object Marcie found is a rock formed by volcanic processes. What type of rock would it be? A. igneous B. metamorphic C. mineral D. sedimentary​

Answers

Answer 1
Answer:

Answer:

The answer would be A. igneous

Explanation:

Related Questions

The three basic skills needed for effective communication are
) Describe three benefits of CBT.​
You are given a sample of unknown cells to examine. Analysis of their nuclei reveals that each cell contains 23 chromosomes. What types of cells might these be?a. Ovab. skin cellsc. liver cellsd. white blood cells
Bacteria in your lab are grown under two conditions, one with exposure to glucose and the other with lactose. what best describes the effects glucose will have upon the enzymes used to metabolize lactose?
What vascular plant tissue is made of dead cells

Condensation of water droplets causes the formation ofA. rain
B. lakes
C. clouds
D. water vapor

Answers

It’s c . Clouds please mark
Me brainliest
The answer is C. Clouds

Why does water move through a membrane?

Answers

Answer:

The cells need water to maintain their metabolic functions, the way water enters through cells membranes is by osmosis.

Explanation:

The cell membrane is a lipidic bilayer composed of phospholipids and embedded proteins. Phospholipids have the characteristic of being amphiphilic which means that possess hydrophilic and lipophilic characteristics. The most common way is by osmosis, that is a mechanism that moves water from high concentration to less concentration of water.  In the cell membrane, there are is channels of proteins called aquaporins that facilitate the pass of water through the membrane. Also, as water is a very small molecule without charge, this characteristic allows passing a limit amount of water molecules through the hydrophilic characteristic of membranes.

Which of the following adaptations of the flowering cactus would not be considered a nonspecific defensive mechanism?A.) The generation of nectar
B.) The growth of spines
C.) The presence of toxins in seed casings
D.) The production of resins

Answers

Answer: Option A.

The generation of nectar in flowering cactus is not a nonspecific defensive mechanism.

Explanation:

Cactus is a xerophytes that have adaptations to survive in its environment.

Cactus have extrafloral nectaries that produce nectars for pollination.The generation of Cactus nectars is just to attract insects like bees for polloniation and not as nonspecific defensive mechanism.

The Isotope calcium-41 decays Into potassium-41, with a half-life of 1.03 x 105 years. There is a sample of calcium-41 containing 5 x 10⁹ atoms.How many atoms of calcium-41 and potassium-41 will there be after 4.12 x 105 years?
OA 3.125 x 108 atoms of calcium-41 and 4.375 x 10⁹ atoms of potassium-41
OB. 6.25 x 108 atoms of calcium-41 and 4.6875 x 10° atoms of potassium-41
OC. 6.25 x 108 atoms of calcium-41 and 4.375 x 109 atoms of potassium-41
OD. 3.125 x 108 atoms of calcium-41 and 4.6875 x 10° atoms of potassium-41
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Answers

The correct answer for this question will be option D.

Calcium-41 = 3.12×10^8 atoms

Potassium-41 = 4.69×10^9 atoms

As stated in the question,

Half life of isotope of Ca-14 which decays into K-14 = 1.03 × 10^5 years

Therefore, after 1.03 × 10^5 years (1 half life)

Ca-41 will be 50%

and, K-41 will be 50%

After 2.06 × 10^5 years (2 half lives)

Ca-41 will be 25%

K-41 will be 75%

After 3.09 × 10^5 years (3 half lives)

Ca-41 will be 12.5%

K-41 will be 87.5%

After 4.12 × 10^5 years (4 half lives)

Ca-41 will be 6.25%

K-41 will be 93.75%

After 4.12 × 10^5 years,

Ca-41 = 6.25/100 × 5×10^9

= 3.12 × 10^8 atoms

K-41 = 93.75/100 × 5×10^9

= 4.69 × 10^9 atoms

Therefore, option D is correct.

Learn more about half-lives here:

brainly.com/question/16387602

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Fermentation has a relatively low ATP yield compared to aerobic respiration because a. more reducing equivalents are used for anaerobic catabolism. b. less ATP is consumed during the first stage of aerobic catabolism. c. oxidative phosphorylation yields a lot of ATP. d. substrate-level phosphorylation yields a lot of ATP.

Answers

Answer:

c. Oxidative phosphorylation yields a lot of ATP

Explanation:

Fermentation is an anaerobic process that takes place in the anaerobic bacteria to produce an energy molecule called ATP.  The process of fermentation involves the breakdown of the glucose through glycolysis which produces 2 ATP molecules, NADH and Pyruvate molecules.

The process does not undergo further steps like the Citric acid cycle and the oxidative phosphorylation which forms the high number of ATP molecules.Since the organism which performs the fermentation does not undergo oxidative phosphorylation therefore the yield of ATP in the cell is very less.

Thus, Option-C is correct.

Copernicus and other astronomers before him thought that celestial bodies followed a _____ orbital path.circular
elliptical
square

Answers

Copernicus and other astronomers before him thought that celestial bodies followed a circular orbital path.

Answer: circular - first choice
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1. The framework of a human body that provides structure and allowing movement.A. Skeletal SystemB. Muscular SystemC. Integumentary SystemD. Digestive System​
The average molecular weight of proteins encoded in the human genome is about 50,000. A few proteins are very much larger than this average. For example, the protein called titin, which is made by muscle cells, has a molecular weight of 3,000,000. Estimate how long it will take a muscle cell to translate an mRNA coding for an average protein and one coding for titin. The average molecular mass of amino acids is about 110 daltons. Assume that the translation rate is two amino acids per second.
Protein phosphorylation is commonly involved with all of the following excepta. activation of receptor tyrosine kinases.b. activation of protein kinase molecules.c. activation of G protein-coupled receptors.d. regulation of transcription by signaling molecules.