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Finger [1]
3 years ago
8

Describe properties of minerals.

Biology
1 answer:
slamgirl [31]3 years ago
6 0
Physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.
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4 The graph below shows how the activity of an enzyme changes
choli [55]

Answer:

A

Explanation:

A. The optimum pH of the enzyme is 6.6.  - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)

B. The optimum pH of the enzyme is 5.8.  - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80

C. The enzyme's activity is greater around pH 8.0 than around  pH 5.0  - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.

D . The enzyme's activity continually increases as pH increases  from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.

6 0
3 years ago
he typical human adult uses about 160 g of glucose per day, 120 g of which is used by the brain. The available reserve of glucos
evablogger [386]

Answer:

In humans, the major precursors from which glucose can be synthesized from are:

1. glycerol from triacylglycerols

2. glucogenic amino acids from protein.

3. Oxaloacetate formed from CO2

4. Pyruvate foem pyruvate carboxykinase

All there's are routes through which the body obtains glucose to replenish body glucose levels

3 0
2 years ago
Read 2 more answers
1. Annual plants continue to grow indefinitely after flowering. True / False.
snow_tiger [21]

Answer:

1. false

2. true

3. true

Explanation:

1. Annuals are the plants that complete their life cycle in one season or one year. These are the herbaceous plants that grow, flower and die in one season. Examples of annuals are geranium, marigold, etc.  

2. In a flower, the whorl of petals is called corolla while the whorl of the sepal is known as calyx. In flowers, calyx and corolla together make perianth. The calyx is outer to corolla in a perianth.  

3. The fruit is a matured and ripened ovary that provides protection to the seeds present in it. Fruits are formed after fertilization and may contain one or more seeds. Tomatoes are the simple berry fruits while cucumber is pepo, the modified berries. Broccoli is the flower head while celery is the edible leaf.  

4 0
3 years ago
Ovule is a male part of a plant. Tor F.
NikAS [45]

Answer:

yes that is the male part of a plant.

Explanation: You are correct

Hope this helps

4 0
3 years ago
Darwin's theory of evolution has 2 parts. what are they?
Georgia [21]

Answer:

natural selection and adaptation

5 0
3 years ago
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