Which adaptation helps to prevent water loss in conifers

How did the results of Meselson and Stahl's experiment confirm that

Vinil7 [7]

Answer: Meselson & Stahl reasoned that these experiments showed that DNA replication was semi-conservative: the DNA strands separate and each makes a copy of itself, so that each daughter molecule comprises one "old" and one "new" strand. The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure. ... From the patterns of DNA labeling they saw, Meselson and Stahl confirmed that DNA is replicated semi-conservatively.

Explanation:

3 0

2 years ago

Sex determination is an example of environmental factors influencing the phenotype.

bija089 [108]

False, it doesn’t depend on environmental factors

4 0

2 years ago

Read 2 more answers

if the ratio of the ages of kisii and esinam is 3:5 and that of Esinam and Larry is 3:5 and the sum of the ages of all three is

larisa [96]

Answer:

The age difference between the oldest and the youngest is 48.

Explanation:

Given the following data;

The ratio of the ages of Kisii (K) and Esinam (E) is 3:5.

The ratio of the ages of Esinam (E) and Larry (L) is 3:5.

The sum of the ages of all three is 147.

Since the age of Esinam is common in both ratios, we find the lowest common multiple (LCM);

LCM of 3,5 = 15.

Hence, the ratio of the three ages is now;

K:E:L = 9:15:25

Let their ages be denoted by x;

$K:E:L = 9x:15x:25x$

The sum of all three ages is;

9x + 15x + 25x = 147

49x = 147

x = 147/49

x = 3.

To find the age difference between the oldest and the youngest;

The oldest is Esinam = 25x

The youngest is Kisii = 9x

Therefore, 25x - 9x = 16x

Substituting the value of x, we have;

x = 3; 16x = 16(3) = 48.

The age difference between the oldest and the youngest is 48.

6 0

3 years ago

Which describes a likely advantage of the roots that gymnosperms have? They are shallow, preventing the plants from growing too

vfiekz [6]

The roots of eh gymnosperms are long and deep, with the advantage to gather deep water. Thus, option D is correct.

Roots are the important network of tissues that gathers the water and essential nutrients from the soil and allow growth.

<h3>What type of roots are in Gymnosperms?</h3>

The gymnosperms are advanced plants with bare seeds. The roots system in the gymnosperms is the taproot system.

The root system in the gymnosperm is the long deep roots that are immersed deep inside the soil.

Thus, the advantage of roots to gymnosperms arises from the deep root for gathering water below the surface. Thus, option D is correct.

Learn more about gymnosperms, here:

brainly.com/question/4526473

6 0

2 years ago

Read 2 more answers

A clay plate has a volume of 30.0cubic centimeters and a mass of 59.1grams. Calculate its density.

Nataly_w [17]

The density of the clay plate is 1970 kg m⁻³

the problem we are dealing with is related to density, which is the mass of a unit volume of a material substance. The formula for calculating density is d = M/V, where d is density, M is mass, and V is volume. Since we are provided with the volume of the clay plate which is 30.0cubic centimeters and the mass of the plate which is 59.1grams

so,V= 30 cm⁻³=3x 10-5 m and M= 59.1grams= 0.0591 kg

Therefore, the density of the plate is: M/V

=>d = 1970 kg m⁻³

To know more about density refer to the link brainly.com/question/15164682?referrer=searchResults.

#SPJ1

5 0

7 months ago